Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263309AbUGAALk (ORCPT ); Wed, 30 Jun 2004 20:11:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263324AbUGAALe (ORCPT ); Wed, 30 Jun 2004 20:11:34 -0400 Received: from e5.ny.us.ibm.com ([32.97.182.105]:15499 "EHLO e5.ny.us.ibm.com") by vger.kernel.org with ESMTP id S263309AbUGAALd (ORCPT ); Wed, 30 Jun 2004 20:11:33 -0400 Subject: Re: [Lhms-devel] new memory hotremoval patch From: Dave Hansen To: IWAMOTO Toshihiro Cc: Linux Kernel Mailing List , lhms , linux-mm In-Reply-To: <20040630111719.EBACF70A92@sv1.valinux.co.jp> References: <20040630111719.EBACF70A92@sv1.valinux.co.jp> Content-Type: text/plain Message-Id: <1088640671.5265.1017.camel@nighthawk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Wed, 30 Jun 2004 17:11:11 -0700 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 716 Lines: 17 On Wed, 2004-06-30 at 04:17, IWAMOTO Toshihiro wrote: > Due to struct page changes, page->mapping == NULL predicate can no > longer be used for detecting cancellation of an anonymous page > remapping operation. So the PG_again bit is being used again. > It may be still possible to kill the PG_again bit, but the priority is > rather low. But, you reintroduced it everywhere, including file-backed pages, not just for anonymous pages? Why was this necessary? -- Dave - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/